Material-working apparatus



June 17, 1930.

J. M. COOK MATERIAL WORKING APPARATUS m V M 2 Sheets -Sheet 1 James M. 00k fil/fzm W Filed June 8. 1927 June 17, 1930. J. M. COOK 1,764,606

' MATERIAL womune APPARATUS Filed June 8. 1927 Z'Sheets-Sheet 2 Wm M) apparatus, and more Patented June I' l, 1930 I UNITED STATES PATENT. oF lcs JAMES HILTON CODE,

] LA. GRANGE, ILLINOIS, ASSIGNOB 1'0 WESTERN 001mm, mconroaa'rnn, or new 1031, u. 2., a conroaa'rron or saw you MATERIAL-WORKING APPARATUS I Application filed June 8, 1927. leriall'o. 191,957.

This invention relates to material working particularly to apparatus for slotting screw blanks continuously fed from an indiscriminately arranged supplyrthereof.

. the blanks against the conveyor he primaryobject of this invention is to provide a simple and durable apparatus for ex editiously working blanks.

n accordance with the general features of the invention, one embodiment thereof constituting a screw slotting apparatus consists of a screw mechanism provided with spiral ways for receiving blanks indiscriminate}? associated therewith by a reciprocating fee ing device. Blanks w ich are properly positioned within the ways are advanced to a storage portion of the screw mechanism and subsequently fed individually in a predetermined s aced relation to a conveyor disk. An angular y disposed disk yieldmzgl clamps is as they are subjected in successive order to a slotting operation.

These and other objects will be more ap- 4 parent from the following detail description and accompanying drawings, wherein Fig. 1 is a vertical sectional view of a portion of a slotting machine representing one embodiment of the invention, the clamping disk being removed for purposes of disclosing parts otherwise hidden; Flg. 2 is a fragmentai'zy taken on the line 22 of section in plan the slotting saw;

line 5-5 of Fi 1, an

' like numerals have been employed to desi'gv line 6-6 of Y properly nate similar parts throughout the various figig. 1 and showing gear 32 which meshes with ures, it will beobserved that Fi 1 and 2 disclose .a machine frame 10, an extending through the machine frame is a screw mechamsm noted generally by the numeral 11, which comprises a pair of parallel screws 13 and 14 inclined from the horizontal. Abearing 15 mounted upon a frame arm 16 suitab y secured to theiframe 10 serves as a support for the lower extremity of the screw 13,

and a bearing 17 supports the upper extremity of thescrew 13 which carries 'a bevel gear 19. The screw 14 which is shorter than the screw 13 is supported at its lower extremit; in a bearing 20, the upper extremity there- 9 terminating in a bearing 21 andsupportmg a bevel gear 22. Each ofthe screws 13 and 14 is provided with a continuous spiral way 24, the spiral way or thread of one screw having the same relative position as the spiral way in the other screw so as to ermit the advancement of a screw blank 25 ig. 6) when properl positioned between the screws as shown in ig. 6. The lower extremity of the screw 13extends'beyond the screw 14 and is enlarged so as to convey a properly positioned screw blank along a path adjacent to a guide 26 (Fig. 2) secured beneath the bearmg 20 into association with one of a plurality of notches 28 provided in a rotatable conveyor disk 29.

This conveyor 'disk 29 is secured to a shaft 30 (Figs. 1; 2,-and 5) and the central portion of the conveyor disk 29 is formed with a bevel and drives'a companion bevel gear 33 which is rotatable with a clamping disk 34 angularly positioned with respect'to the conveyor disk 29. This clamping disk 34 is rotatable within a suitable bearin digl saw slots 37 formedaround themargin thereof. The saw slots 37 divide the disk 34 into a plurality of radialv arms having clamping surfaces 38 (Fig. 5 and render the margin of the disk 34 sufficiently resilient so that when a clamping surface engages the shank of a screw blan 25 carried. within a notch 28'of the conveyor disk 29, it will clamp the blank as the head thereof is carried into association with a formingmember-on slotting Saw 40. This slotting saw 18. continuously 36 and is providedwith a plurality-of ra- 55. The lower extremi rotated by-meansof an electric motor-(not shown) or other-suitable driving device and the yielding grip of the disk 34 upon thescrew blank insures the formation of clean, uniform cuts in the blank heads as they are successively moved past the saw 40. Referring to Figs. 1 and 2, it will observed that rotation in opposite directlon s im arted to the screws 13 and 14 by a pair 10 of mvel gears .41 and 42 meshing with the mg slidably keyed and the gear 42 to a horizontally disposed shaft 44 'wh1chhas a bevel gear connection at its rearward extremity extremity of the shaft 45 has a geared connection with one extremity. of a horizontal shaft 46 (Fig. 1), the other extremity thereof having a worm 48 which engages a worm wheel 49 keyed to the shaft 30. A bevel gear- 50 (Fig. 1) secured to the shaft 46 meshes with a' companion gear 51 mounted upon one end of a main drive shaft 53 which carries a gear 54 (Figs. 1 and 3). The drive shaft 53 is connected at its opposite extremity to a suitable driving mechanism (not shown). The gear 54 serves to drive a lar gear 55 through an intermediate gear 56, t e gear 55 servin .as the driving medium of a screw blank fe g '30 denoted generally by the numeral This blank feeding mechanism 58 comprises a hopper 59 which is suitabl support ed upon the machine frame 10. 7 he bottom as of the hopper 59 inclines downwardly toward the rear thereof, and positioned at the rear side of the hopper is a (pair of reciprocable feeding members 60 an 61 vertically slidable within the hopper. Vertical reciproca- 40 tion is imparted to the feed member 60 through the, action of anarm 63 (Fig. 3), one end of which is pivotally' connected with the lower end of the feed member 60, the other end having a pivotal connection with "5 the marginal portion of the face of the gear of the reciprocable feed member 61 .is provi ed with a projection or lug 65 which is slidable upon a vertical in 66 threaded to the lower extremity of the 5g eed member 60. It will be observed that as the feed member 60 begins its downward movement from its uppermost position shown in Fig. 3, the member 61 will not be moved until a collar 67 carried by the pin 66 engages 55 the projection or lugv 65. Upon the enga ment of the collar 67 with the lug 65 t e feed member 61 begins to move downwardly inst acoilsp 68 carried by the in 66.

'lliiis when the mem 60 and 61 reac their so lowermost e(piosition with their upper extremitie's imm ately below the lowermost portion of the hop r 59, an upper inclined surface 70 of the fad member 60 will have assumed a podtion below that ofj'the upper- 63 end of the feed member 61, thereby presentgears 19 and '22, respectively, the gear 41 bewith a vertical shaft 45. The lowering a channel or pocket into which screw blanks from the hopper 59 will be deposited by the action of gravity. As the members 60 and 61 are moved upwardly as a unit with .a stop screw 71 carried by the feed-member 61 engages a stop screw 72 secured to the hop er 59 which prevents further movement of the member 61 and the feed member 60 continues to move u wardly a short distance until the upper an ace 70 thereof is carried into ali ent with the upper surface of the mem r 61. Screw blanks resting upon the inclined surface 70 will then be carried by gravity over a bin ed guide plate 74 and subsequently deposi in indiscriminate order between the screws 13 and 14 of the mech-' anism 11. From the foregoing it will be clear that the feedmechanism serves to continuously supply screw blanks to the screw mechanism 11 and any blanks which may be.

thrown from the screw mechanism will fall back into the hopper.

The spiral ways in a section of the screws 13 and 1-4 denoted b the numeral 75 upon which the screw bla s are deposited by the feed members 60 and 61 have a com aratively small pitch so as to effect a relatlvely slow advancement of the deposited blanks. When the blanks reach the end of this section 75, their speed of advancement is greatly increased by reason of the increased pitch of the way 24 in a section thereof denoted bythe numeral76. In this section 76 the screws permit any 13 and 14 are cut away so as to improperly positioned blanks resting upon the screws to pass downwardly therebetween and be precipitated into the blank supply within t e ho per. From the section'76 of the way- 24,.t e screws are carried into a section 78 thereof, the pitch of the ways in this section being, similar to the pitch of the ways in section 75. Section 78 serves to store the properly positioned screw blanks before they are advanced by a section 79, the pitch of the ways in this latter section being such as to space the advanced screw blanks in accordance with the spacing of the notches 28 in the conveyor member or disk 29. Thus it will be understood that as the blanks are advanced from the storage section 78 of the ways 24 they will be spaced in a predetermined order in the section 79 and successively delivered to the notches 28 as they move.

poastlthe lower extremity In' order to prevent a continuous advancement of the screw blanks within the section 76 of the ways 24 after the storage section 78 has been completely 80 (Figs. 1 and 4) is provided which is suitably secured to the inner wall of the hopper of the screw memfilled, a stop mechanism ing transversely of and threaded within the.

59. This mechanism 80includes a pivoted finger 82 having at its'forward outer extreme ity a de nding ti 83-which is adapted' when swung ownward y through the action of a pivoted guard 84 engaging the opposite extremity of the finger 82 to obstruct theadvancement of screw blanks and cause the same to be dislodged from the ways 24. The downward swinglmg of the tip 83 is only occasioned when t e blanks completely fill the sections 79 and 78 at which time the blanks will be backed upwardly against the lower edge of the guard 84. Extending between the screw members 13 and 14 at the described lower portion thereof is a fixed uard member 86 which occupies a position immediately above the heads of the screw blanks being advanced within the sections 78 and 7 9., there bly precluding the upwarddisplacement of t e advancing blanks. This guard 86 terminates at its uppermost end a jacent the pivoted guard 84 and serves to limit the downward swing'of the guard 84. Obviously when the section 78 of the way 24 is not completely filled, blanks will be advanced in normal position beneath the guard 84 and the finger 83 of the stop mechanlsm will occupy its uppermost position as shown in Fi 1. The sto mechanism 80 is provided wit a pair of a justing thumb screws 87 and 88, the screw 87 serving to adjust the lateral alignment of the guards 84 and 86, and the finger 83 with respect to the screws 13 and 14. The adjusting screw 88 serves to adjust the vertical position of the guards 84 and 86 and the finger tip 83.

Means is provided for adjusting the lateral position of the screw 13 with respect to the screw 14 which includes a shaft 90 extendniachine frame arm 16 which supports the screw bearing 15 at its inner extremity. The

I shaft 90 supports a worm wheel 91 which engages a companlon worm 92. carried by a horizontally disposed shaft 93. This shaft 93 is provided with a similar worm 95 at its opposite extremity which engages a com anion worm wheel 96 mounted upon a sha t 97 threaded Within a framebracket 98. The

inner extremity of this shaft 97 supports the screw bearing 17 and operates upon rotation to laterally adjust the screw 13. Thus it will be clear t at upon engaging and turning a squared end 99 of the shaft 93 by means of any suitable wrench, the lateral adjustment of the screw 13 with respect to its companion screw 14 may be readily obtained. A graduated member 100 carried by the shaft 90 serves to indicate the degree of lateral displacement of the screw 13.

- In the operation of the apparatus the screw blanks are placed within the hopper 59 and rotation is imparted to the main drive shaft 53. The reciprocation of the feed members and 61 causes blanks to be continuously supplied to the screw mechanism 11 and cersivel tain of the deposited blanks become properly lodged between the ways 24 in the section 75. The itch of the s iral ways in thesection 75 enab es blanks w ichare deposited in indiscriminate order thereon, readily to become properly positioned and advanced in close p rox1m1t within the ways. From the section 75 t e blanks are steadily advanced. to the section 76 wherein improperly positioned 'blanks are returned to the hopper, and from this section the properly positioned blanks are advanced to the storage section 78. In

the storage section 7 8, the properly positioned blanks are again arranged in close proxim- 1i! as in sect1on'75 and by this arran ment 0 the s iral ways a supply of blan s will always in readiness to be advanced in spaced relation b the section 79. From the stora e section 8 individual blanks are quick y advanced in a predetermined s aced relation by the section 79 and indivi ually delivered to the notches 28 provided in the conveyor disks 29. Itwill be clear that by having the spiral ways 24 arranged in the manner described, the notches 28 will be en plied without interruption with screw blan s as they pass the lower extremity of the way and hence the conve or disk 29. will operate at its maximum e ciency. The blanks in the notches 28 are successively carried into clamping relation with the clampin disk 34 whic operates to firmly hold a blank in ting saw 40, the blank being subsequently released and deposited by gravity into a suit-.

individual blanks directly tothe delivering means at proper" predetermined intervals. 2.In apparatus for working blanks, a

.blank working means}:means for successively delivering'lblanks to the working means -at predetermined intervals, a screw mechanism aving a spiral way for advancing blanks from a supply thereof,.storing properly positioned blanks and advancing stored blanks ina predetermined spaced relation to succespresent individual blanks to the delivermg means at proper predetermined intervals.

3. In a aratus for working blanks, a blank wor mg means, means for successively delivering blanks to the Working means at proper position as it is carried past the slotredetermined intervals, a screw mechanism aving a spiral way for advancing blanks from a supply thereof, storing properl positioned blanks and advancing stored lanks in a predetermined s aced relation to Suecessi'vely present indlvidual blanks to the delivering means, and means for retarding the advancement of blanks when a predetermined supply of blanks have been stored.

4. In a aratus for working blanks, a blank wor ng means, means for successively delivering blanks to the working means at redetermined intervals, a screw mechanism iiaving aspiral way for receiving blanks indiscriminately associated therewith and for advancing properly positioned blanks in a predetermined spaced relation to successively present individual blanks directly to the delivering means at proper predetermined intervals, and means for associating blanks with the spiral way.

5. In apparatus for forming blanks, a forming means, rotary means for successively associating blanks with the formin means, and a screw mechanism operable 1n timed relation with the rotary means having a spiral way for'advancing blanks in proper predetermined spaced relation to deliver 1ndividual blanks successively to the rotary means.

6. In apparatus for forming screw blanks, a forming means, means for receiving and successively advancing blanks into association with the forming means, means for delivering blanks to the receivin means, and a rotary clampingmemberangu arly dlsposed with respect to the advancing means for yieldingly clamping a blank in Eosition during the association thereof with t e forming means. 7. In apparatus for forming screw blanks,

a forming means, rotary means for receiving and successively advancing blanks into .associationwith the forming means, and a rota clamping member having resilient radizlly extending portions for yieldingly and individually enga 'n blanks during the associationthereo with 'the forming means. 7

8. In apparatus for forming screw blanks, a slotting cutter, a rotatable disk member provided with a plurality oi marginal blank receiving for advancing anks into associatlon with the cutter, means for feeding blanks to the recesses in the disk member, and a com anion angularl disposed rotatable disk or yieldingly c ampmg a blank within a recess during the association thereof with. the cutter.

9. In apparatus for formi screw blanks,- a slotting cutter a rotatable disk memberfor advancing blanks cutter, means for feeding blanks to the rotatable disk member, and a cooperating clamping disk member provided with a plurality of resilient, radially extending arms. v I l 10. In bIBJIkS 8, rotary member a: for rece ving blanks, a rotary lamping member having radially extending resilient members adapted to succe ssively engage the blanks posltloned 1n the N to prevent displacement thereof relative to the r v w: and meansfor successively forming the blanks engaged biy the resilient members.

11. In b ankjorming apparatus, a continuousl rotating member adap to receive blan s, a clamping member rotating at the same speed as t e rotating member and havmg resilient members adapted to successively engag: the blanks received by the rotating mem r to prevent relative movement between the blan ks and the rotating member, and means for successively forming the blanks engaged b the resilient members.

12. In b ank forming apparatus, a slotting means, a rota member a apted to advance blanks to the s otting means, and alurality of resilient members rotating at the same speed as said rotary member-and yieldingly bearing thereagainst to successively and in-' dividually clamp the v the slotting means.

13. In blank forming apparatus, a forming means, rotary means for successively advancing blanks into association with the forming means, and a plurality of yielding members rotatably mounted in a plane inclined to the plane of rotation of the advancing means and each adapted to cooperate with the advanc- 1ng means yieldingly clamp a blank in position during the association thereof with the forming means.

14. In blank forminggpniaratus, a forming means, a rotary mem r aving radial. 1ecesses. for receiving and successively advancng blanks into association with the forming means, and a rotary member having resilient radlalmrtions .cooperatin with the recesses of the rst mentioned mem r to individually and yieldingly clamp the blanks during their association with the forming means.

blanks being slotted by apparatus for forming screw.

In witnesswhereof, I hereunto subscribe into association with the 

